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Cutting gaskets from bicycle inner tubes

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Cutting gaskets from bicycle inner tubes


Post by Sporkboy » Mon Jun 29, 2020 8:38 am

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Normally you would want to source a proper gasket for your watch, but sometimes you just need a quick solution to a problem. That is when you make what you need out of what you have in hand.

I purchased a Soviet watch for the $35 mechanical field watch challenge and it kept fogging up on me. In looking at the watch I saw that the caseback has a ridge that would dig into a washer, but there was no washer. Nothing at the hardware store was thin enough and I figure that rough fix would be appropriate for a Soviet era watch.

-I took a section of bicycle inner tube and washed it to remove the white dust that is on the inside of the tube and cut it to make a flat piece of rubber.

-Cuts were made with a fresh hobby blade as it needs to be sharp to cut cleanly.
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-Using the retaining ring as a guide, I pressed the retaining ring onto the rubber while tracing around the inside and then outside to complete the cuts. It was a little easier to do the inside first and then the outside.
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-I pulled all the little bits that are hanging off from where two cuts meet so that no rubber could come loose and fall into the movement.

-This was coated lightly with silicone grease/oil and then installed in the watch.
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That’s it. I would ideally source an appropriate washer, but for a fun, low cost watch, I think that this is fine. It also adds a little more flair to the watch in a bootstrapped/MacGyver type of way.
Last edited by Sporkboy on Mon Jun 29, 2020 11:33 am, edited 1 time in total.
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Re: Cutting gaskets from bicycle inner tubes


Post by tjcdas » Mon Jun 29, 2020 10:36 am

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